Iceberg Research, the anonymous commenter that caused shares in Singapore-listed Noble Group to tumble this week, may soon find itself unmasked.
Iceberg released a report, dated Sunday, headlined "Noble Group, a repeat of Enron," alleging that the Singapore-listed commodities trader's accounting treatments were "unusual," result in "fabricated" profit and "intentionally misleads credit agencies and investors." The report, together with the promise of more to come, sent the shares down nearly 13 percent on Monday and Tuesday despite Noble's strongly worded denials.
Now Singapore's market watchdogs are on the case.
Read More Noble shares take second-day drubbing
"The Monetary Authority of Singapore (MAS) is reviewing the statements in the Iceberg research report," Singapore's central bank said in an emailed statement Wednesday. "MAS will take appropriate action if there are breaches of the Securities & Futures Act."
Noble said it welcomed the MAS investigation.
Iceberg Research, however, brushed aside the news of the regulator's scrutiny.